Re: [gtk-list] Re: rewrite question:how to attach a pixmap to aGtkWindowas the background

[Matt Long <matt long wcom com>]

I don't know if this will help you much, but I took your source code and
moved these lines:

   //create pixmap
   style=gtk_widget_get_style(window1);

  
pixmap=gdk_pixmap_create_from_xpm(window1->window,&mask,&style->bg[GTK_STATE_NORMAL],
	"./BACKGROUND.XPM");
 
   gdk_window_set_back_pixmap(window1->window,pixmap,0);

and placed them before the button creation. If you do this, recompil,
and run, you will notice that the backgroud pixmap flashes (e.g. it
appears for a split second) and then all you see is what you described
previously. This is somewhat strange. I tried commenting out different
parts of the code to determine which part(s) may be obfuscating the
pixmap, but was unsuccessful.

Sorry I couldn't be of more help. Maybe someone else has seen this
flicker effect before.

-Matt

Jiang XU wrote:
> 
> I have been driven crazy!!
> 
> But, first thanks Todd!, at least I can get the GdkWindow.
> But I still can not put the pixmap as the background of the GtkWIndow. It
> doesn't show up!!
> So, I guess I still need Help!!
> Thanks very much!!
> 
> The following is the source code (test example), it only include one table and
> one button:
> I use gtk_window_new to create window1 and use gtk_widget_realize to set
> window1->window, then I use gdk_window_set_back_pixmap to set the pixmap as
> the background. but when run the application, it does not show the pixmap.  I
> wonder what's wrong!
> 
> Need help!!
> Thanks very very much!
> 
> #include <sys/stat.h>
> #include <unistd.h>
> #include <string.h>
> #include <gtk/gtk.h>
> #include "interface.h"
> 
> GtkWidget*
> create_window1 ()
> {
>   GtkWidget *window1;
>   GtkWidget *table1;
>   GtkWidget *button1;
>   GdkPixmap *pixmap;
>   GdkBitmap *mask;
>   GtkStyle *style;
> 
>   window1 = gtk_window_new (GTK_WINDOW_TOPLEVEL);
>   gtk_object_set_data (GTK_OBJECT (window1), "window1", window1);
>   gtk_widget_set_usize (window1, 640, 480);
>   gtk_window_set_title (GTK_WINDOW (window1), "window1");
>   //set windows->window, which is GdkWindow
>   gtk_widget_realize(window1);
> 
>   //create table
>   table1 = gtk_table_new (10, 10, FALSE);
>   gtk_widget_ref (table1);
>   gtk_object_set_data_full (GTK_OBJECT (window1), "table1", table1,
>                             (GtkDestroyNotify) gtk_widget_unref);
>   gtk_widget_show (table1);
>   gtk_container_add (GTK_CONTAINER (window1), table1);
> 
>   //create button
>   button1 = gtk_button_new_with_label ("button1");
>   gtk_widget_ref (button1);
>   gtk_object_set_data_full (GTK_OBJECT (window1), "button1", button1,
>                             (GtkDestroyNotify) gtk_widget_unref);
>   gtk_widget_show (button1);
>   gtk_table_attach (GTK_TABLE (table1), button1, 4, 5, 8, 9,
>                     (GtkAttachOptions) (0),
>                     (GtkAttachOptions) (0), 0, 0);
> 
>   //create pixmap
>   style=gtk_widget_get_style(window1);
> 
> pixmap=gdk_pixmap_create_from_xpm(window1->window,&mask,&style->bg[GTK_STATE_NORMAL],"./BACKGROUND.XPM");
> 
>   gdk_window_set_back_pixmap(window1->window,pixmap,0);
> 
>   gdk_window_show(window1->window);
> 
>    return window1;
> }
> 
> int main (int argc, char *argv[])
> {
>  GtkWidget* window1;
> 
>  gtk_init(&argc,&argv);
> 
>  window1=create_window1 ();
> 
>  gtk_widget_show (window1);
> 
>  //start gtk+ main loop
>  gtk_main ();
> }
> 
> Todd Dukes wrote:
> 
> > Jiang XU wrote:
> > >
> > > I want to attach a pixmap to a GtkWindow as the background, there is
> > > a function 'gdk_window_set_back_pixmap` , but this function
> > > 'gdk_window_set_back_pixmap` only supports GdkWindow.
> > > But my application is using GtkWindow which let me can add
> > > other widgets to the window.
> > >
> > > So I wonder how I can attach a pixmap to a GtkWindow as the background?
> > > Or, How to get the associate GdkWindow from a GtkWindow, so that I can
> > > use that function?
> > > Or, How to create a GtkWindow from a GdkWindow which is already get a
> > > pixmap background by using that function.
> > > Or, any other way?
> > >
> > > In struct _GtkWidget, there is a parameter called GdkWindow *window.
> > > But, if using 'windows1=gtk_window_new(..)' it won't set that parameter,
> > >
> > > which means windows1->window=NULL, it does not
> > > link to a GdkWindow, and same as button,table.....
> > >
> >
> > I believe you should call
> >
> > gtk_widget_realize ( windows1 );
> >
> > after windows1 = gtk_window_new (...) before you check
> > the value of windows1->window;
> >
> > Todd.
> >
> > --
> >    | Todd Dukes                      E-MAIL:  tdukes@ibmoto.com |
> >    | Motorola Somerset                  Phone:   (512) 424-8008 |
> >    | 6200 Bridgepoint Parkway Building #4 MS OE70               |
> >    | Austin, Texas 78730                                        |
> >
> > --
> > To unsubscribe: mail -s unsubscribe gtk-list-request@redhat.com < /dev/null
> 
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